baber/WOPTO huggingface dataset:
Patent GB-573203-A (GB)
Title: Improvements in electromagnetic solenoids
IPC: H01F41/04
Filed: 1943-01-16
Abstract: 573,203. Solenoids. VICKERS, Inc., MILLER, R. S., and SEIDEL, K. Jan. 16, 1943, No. 13105/45. Divided out of 573,174. [Class 35] The housing for the winding 24, Fig. 1, of a solenoid is formed by moulding or casting a casing 15 of non-magnetic material, such as aluminium or the material known under the Registered Trade Mark " Bakelite," around L-shaped blocks A, B, C, D, Fig. 4, of magnetic material. The blocks are held in spaced relation around an axis E by angle irons 10 and braces 11. The housing is machined to provide a cylindrical bore which terminates in a wall 17. The construction and arrangement of the solenoid is described in Specification 573,174.
Patent GB-343828-A (GB)
Title: Improvements in chains for electric lighting
IPC: G09F13/00
Filed: 1930-04-29
Abstract: 343,828. Supporting electric lamps. STREPTO-LICHT, GES. and LAUR, H., Kehl-on-Rhine, Germany. April 29, 1930, No. 13114. [Classes 39 (ii) and 75 (iii).] In a chain for supporting incandescent lamps formed of insulating links carrying conductors the lamp caps serve as pivot pins for the chain. Each link is formed at one end with a fork, one prong 2 of which is perforated for the lamp cap to pass through it, the other prong 4 carrying a centre contact 5. The other end 3 of the link is formed to fit into the fork of the next link and carries a screwed bush 6. The contact 5 and bush 6 are connected by a conductor embedded in the body of the link and comprising a plug socket 7 and terminal screw 8.
Patent GB-1464350-A (GB)
Title: Piezo-electric analogue store
IPC: H02N2/06
Filed: 1975-04-01
Abstract: 1464350 Electric analogue stores PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 April 1975 [4 April 1974] 13190/75 Heading G4G An analogue storage circuit includes a piezoferroelectric storage disc 3 having a driving electrode 4 coupled to an A.C. oscillator 15 and at least one storage electrode 11 coupled to an input 23 of a phase-sensitive output circuit 25, such as a differential amplifier which provides an output dependent on the local polarization of the disc 3 by a source 21, the phase-sensitive circuit 25 having a further input 27 coupled to the oscillator 15, in this case via a feedback path from electrode 5 to the oscillator. Capacitors 31, 33 decouple D.C. signals. In a modification, Fig. 2 (not shown), capacitors 31, 33 are connected to one input of an amplifier (26) which also has a resistor (35) leading to earth, the impedance of the resistor being much less than that of the capacitors at the operating frequency.
Patent GB-255190-A (GB)
Title: Improvements in or relating to artificial legs
IPC: A61F2/64
Filed: 1925-05-20
Abstract: 255,190. McKay, P. M. May 20, 1925. Limbs, artificial. - A knee-joint is locked by means of a sliding plunger in the bucket engaging with a plate attached to a back-cheek member journaled on the pivot pin of the joint. The bucket 10 contains a D-shaped casting 14 carrying bearings for the pivot pin 13 as described in Specification 191,139. The straight portion of the D is interrupted to accommodate two plates 18, 19 forming a. part of the back-cheek member 12 and carrying a roller 20 for an operating-cord. Against the plate 19 is arranged a bracket 21 secured to the bucket and carrying a sliding plunger 23 engaging with one of a series of recesses 24 in the plate 19. The plunger 23 is operated by a lever 26 actuated by a screw 28 which can be turned bv a handle 30 outside the bucket.
Patent GB-406513-A (GB)
Title: Process for manufacturing pigmented protective coatings and products obtained by this process
IPC: C09D7/45
Filed: 1933-05-06
Abstract: Paints, lacquers or varnishes are made by enclosing or enveloping pigment particles in a mono-molecular layer of a compound having a long hydrocarbon chain before incorporating the pigment in varnish base material.  Suitable compounds are fatty acids or esters thereof, such as ricinoleic acid, china wood oil, hempseed oil, soya bean oil or castor oil, and the varnish base material may be of a cellulosic, oleoresinous or synthetic resinous nature.  As an example, 10 kgs. of titanium dioxide, of average particle diameter 0.7m  and density 4.2, are mixed, for 20 hours in a pebble mill, with 20 kgs. of a toluene-benzine mixture and with 24.4 gms. of china wood oil.  The resultant oil-enveloped pigment is then mixed with the remaining paint or varnish constituents.  U.S.A. Specifications 1,832,416 and 1,832,417 are referred to.
Patent GB-1034898-A (GB)
Title: Improvements in or relating to line time-bases
Inventor: MCKELLAR JOHN CAMPBELL
IPC: H03K4/83
Filed: 1964-03-31
Abstract: 1,034,898. Semi-conductor sawtooth circuits. MULLARD Ltd. May 31, 1965 [March 31, 1964], No. 13293/64. Heading H3T. A line time-base for a television receiver comprises deflection coils Ly controlled by a semi-conductor gate-controlled switch T turned on and off by current pulses derived from a switching transistor T2, RC-coupled to the gate of T1. As described, when transistor T2 is turned off, a current pulse is supplied to the gate of the controlled PNPN silicon switch T1, initiating a linear rise of current in deflection coils Ly. T2 is turned off at the end of each sweep providing a larger amplitude negative current pulse which turns off T1 and initiates a resonant flyback, the duration of which is controlled by Ly and C2. L1 may be replaced by an inductor, giving resonant charging of C1. A shunt energy-recovery diode D1 may be provided, and results in each sweep starting shortly before transistor T2 is turned off. Alternatively, a series H.T. boosting circuit may be provided if deflection coils Ly are coupled to tappings on a transformer in the anode circuit of T1 having a boost capacitor in series and an efficiency diode connected between the positive supply and the deflection coils.
Patent GB-133314-A (GB)
IPC: F42B17/00
Abstract: 133,314. Sperry Gyroscope Co., (Assignees of Sperry, L. B.). Dec. 22, 1916, [Convention date]. Counting-apparatus; stop-mechanism.-In an explosive-carrying aeroplane or dirigible, which is automatically controlled (without carrying a pilot), and, after launching, rises to a height governed by an aneroid barometer, then travels horizontally under gyroscopic control, in the desired direction, which is also gyroscopically controlled, for a distance determined by a propeller-shaft revolution counter and/or a chronometer, and finally is caused to dive steeply towards the target, the revolution counter which controls the distance flown before the machine dives is geared to the propeller shaft 76, Fig. 2, and comprises a train of reducing gears, the last spur-wheel 80 of which carries an electric contact 83, Fig. 4, adapted to engage a contact 84 on the casing when the predetermined number of revolutions has been made by the shaft 76. The wheel 80 is formed with a recess 86 which comes opposite the driving pinion 79 when the contact is made, so that the wheel 80 is stopped in the position of contact.
Patent GB-255585-A (GB)
Title: Improvements in and relating to electrical condensers
IPC: H01G2/10
Filed: 1925-05-21
Abstract: 255,585. Cole, W. J., and Telegraph Condenser Co., Ltd. May 21, 1925. Condensers. - Condensers are made with the screw terminals provided with slots in which soldering tags are arranged. The casing body 1 is of sheet metal, stamped, pressed or bent to the required shape, and closed by top and bottom plates 2, 3 with flanges fitting on the inside of the body. The top plate 2 is apertured in two places and recessed at 4 and insulating washers 5 are secured by a terminal bolt 6 and nut 10 to form a water- and air-tight joint. The bolt 6 is slotted to receive a tapered soldering tag 8, the taper being slightly wider than the bolt so as to be secured by the nut 10, and an extra lead securing-nut 13 may be provided. The plate is secured to the body 1 by tongue-and-slot means and the flanges 11 thereon fit the interior of the body, or alternatively it may be secured by soldering, a method which may be used when mica dielectric is employed without any filling between the condenser unit itself and the bottom plate. The casing may alternatively have an integral top plate and body formed of a single sheet.
Patent GB-998029-A (GB)
Title: Improvements in or relating to piezo-electric devices
IPC: H03H9/05
Filed: 1962-04-06
Abstract: 998,029. Piezoelectric crystals. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 6, 1962 [April 10, 1961], No. 13345/62. Heading H1E. The supply conductors 9 of a quartz piezoelectric resonator 1 are connected to the electrodes 15 by means of a conductive paste consisting of water glass and a metal, e.g. silver, powder. The cement is applied to the tags 11 of conductors 9 and, after drying at 200‹ C., the assembly is heated in high vacuum at 500‹ C. until the cement no longer evolves gas or water vapour. Subsequently, the glass hood 5 is sealed in high vacuum to the glass or ceramic base 3 and the seal annealed to relieve stress at a temperature of 500‹ C. No further decomposition of the cement takes place during the annealing. Pins 7 are made from a chromiumiron alloy. The resonator is an AT-cut plate.
Patent GB-217405-A (GB)
Title: Improved gyroscopic navigational apparatus
IPC: B64C17/02
Filed: 1923-05-18
Abstract: 217,405. Schilovsky, P. May 18, 1923. Gyroscopic apparatus.-A turn indicator for aircraft or ships comprises an electrically - driven gyroscope 5 rotating on a horizontal axis in a frame 3 which is supported by knife edges on pillars 2 and carries a plate 6 indicating its precessional movements in response to turning of the aircraft &c. The gravitational control of the gyroscope can be varied by adjusting a weight 9 within a cylinder 8 secured to the frame 3, the adjustment being effected by a handwheel 11 under the control of the pilot. The oscillations of the frame 3 are damped by a dashpot the piston 13 of which is connected to the frame. The cylinder 12 is enlarged at its centre to reduce the damping effect and is also provided with a valve 15 adjustable by the pilot. The gyro-rotor comprises the field windings of a direct-current motor, the stator of which is secured to the frame 3. The speed of the motor is relatively low. The device may include a pendulum 29 pivoted on knife edges 30 and carrying a pointer 28. The gyroscope can be stopped and lifted from its bearings, when required by a member 19 carried by a push-rod 16. At the same time the circuit of the motor is broken by the, separation of contacts 20, 21. For use on ships, the instrument is mounted on a platform carried by a normally pendulous gyroscope. This gyroscope is provided with a verticaly-displaceable mass which is moved when the ship is turning, to bring the system into neutral equilibrium.
Patent GB-133769-A (GB)
IPC: G03C1/10
Filed: 1918-10-15
Abstract: 133,769. Renwick, F. F., and Bloch, O. Oct. 15, 1918. Colour-sensitive plates and films.-For coloursensitive plates, a dye of the auramine or iminodiphenylmethane class is used. A bathing-solution of 1 grm. in 50,000 c.c. of water is used. Part of the water may be. replaced by alcohol, and a few drops of ammonia per 1000 c.c. of the bath may be added. Such use of auramine is distinguished from the incorporation of a larger quantity in orthochromatic plates for light filtering or screening purposes.
Patent GB-1239912-A (GB)
Title: Improvements in door hinges
Inventor: SAMUELS HARRY
IPC: E05D5/06
Filed: 1967-03-22
Abstract: 1,239,912. Door hinge. EPSOM CABINET WORKS Ltd. 21 June, 1968 [22 March, 1967], No. 13393/67. Heading E2F. A door hinge comprises two hinge flaps 2, 4 jointed by a knuckle 6, wherein each of the hinge flaps includes a first flat part 8, 14 extending from the knuckle and a second flat part 10, 16 extending normal to the first flat part and from the edge 12, 18 thereof remote from the knuckle, the hinge flaps in the closed position of the hinge being disposed so that the first parts of the flaps lie alongside one another as do the second parts of the flaps, and the knuckle lies wholly on the same side of the first flat part of each hinge flap as the second flat part thereof. As shown in Figure 1, the first and second parts of the hinge flap 4 are apertured to receive the first and second parts respectively of hinge flap 2 so that in the closed position of the hinge, the first parts of the hinge flaps are co-planar as are the second parts.
Patent GB-138250-A (GB)
Title: Portable irrigating stand
IPC: A61M3/02
Filed: 1919-05-27
Abstract: 138,250. Truax, F. B. May 27, 1919. Stands.-A folding irrigator stand comprises a telescopic upright member and tripod legs pivotally connected thereto. The telescopic member comprises sections 6, 8, 10 adapted to be held in the extended position by setscrews 13 passing through collars 7, 9, and is fitted with a hook 11 and de.- tachable brackets 14. Tripod legs 18 of U- shaped cross-section are pivoted at c to ears u on a sleeve 17 adapted to slide on the lowest section 6 and fitted with a set-screw 20. Tie-rods 19 are pivotally connected to the legs 18 at d and to ears a on a boss 16 at the lower end of the section 6. When folded, the rods 19 lie within the channels of the legs 18, as shown in Fig. 1.
Patent GB-558484-A (GB)
Title: Improvements relating to floating coastal defence and like units
IPC: B63B35/00
Filed: 1940-08-23
Abstract: 558,484. Floating structures. PHILLIPS, W. A. Aug. 23, 1940, No. 13405. [Classes 113 (i) and 113 (ii)] A floating residence, coastal defence unit, lightship, or like floating structure, is of relatively great draft and its vertical section is of stepped form including an upper part 1 of relatively large area in plan lying at the water level 28, a flat or inclined shoulder portion 3 just below the water level, and one or more lower parts 2 of downwardly decreasing crosssectional area. The upper and/or lower parts may be circular, elliptical, or polygonal in horizontal cross-section, the upper part may have a horizontal cross-section which is substantially constant throughout its depth, the lower part may be of truncated conical formation, and the bottom 20 may be domed. The structure may be provided with a circular keel 29, and with stiffening webs 22 - - 25, and it is preferably made of reinforced concrete which may be covered with resilient and waterproof material. Specification 558,455 is referred to.
Patent GB-552271-A (GB)
Title: Improvements in or relating to means for extinguishing fires due to inflammable vapours
IPC: A62C99/00
Filed: 1941-10-17
Abstract: 552,271. Fire extinguishing. LA CONCHA Y OTERMIN, J. G. DE. Oct. 17, 1941, No. 13410. Convention date, Oct. 18, 1940. [Class 47 (ii)] To extinguish fires due to escaping inflammabl vapours from liquids stored in tanks, barrels &c. in chambers, silos &c. a liquid seal is provided to cut off the supply of air to the chamber. As shown, entrance to a store room A is by means of stairs m, n p, a door II in an ante-chamber B, and a door I the top of which is below the level of the bottom a, g of the store room, which is preferably fitted with a low wall h. A water tank T is arranged above the ante-chamber B, and on the outbreak of fire, the water is discharged by automatic or other means in a quantity at least sufficient to fill the pit a ... d, and so form a hydraulic seal to close the store room A.
Patent GB-1304585-A (GB)
IPC: B01F15/00
Filed: 1970-03-23
Abstract: 1304585 Variable speed gearing POLSKA AKADEMIA NAUK ZAKLAD DOSWIADCZALNY BUDOWY APARATURY NAUKOWEJ "UNIPAN" 23 March 1970 [22 March 1969] 13512/70 Heading F2D [Also in Division B1] A laboratory mixer comprises a motor connected by a flexible shaft 2 to a variable speed transmission 4 which comprises a ball cage 10 connectable to a mixing element 7, inner, bell-shaped, track members 12 and 13 spring pressed together, one of the members being driven by the shaft 2, and outer track members 14, 15 which can be moved towards each other by an annular member 19 to move the balls radially inwardly. The motor is mounted on the base of the mixer and the transmission can be held by an adjustable clamp.
Patent GB-398594-A (GB)
Title: Improvements in the mounting of the wheel of a sidecar or the like on its chassis
IPC: B62K27/02
Filed: 1932-05-11
Abstract: 398,594. Single-wheel suspensions. WATSONIAN SIDECARS, Ltd. and WATSON, T. F., Albion Road, Greet, Birmingham. May 11, 1932, No. 13513. [Classes 108 (ii) and 108 (iii).] The wheel of a side-car &c. is mounted on an axle at the free end of a vertical arm connected to an horizontal support of the chassis, a resilient coupling being provided between the arm and the support. The arm 7 carrying the axle 6 is mounted on the shaft 4 pinned to the frame 1, 3 by means of a "silent bloc " which consists of a sleeve 10, a bush 9 and a intermediate ring 11 of resilient material forced into position. The sleeve 8 is a driving fit into the bore 8 of the arm 7 while the bush 9 is clamped on the shaft 4 by means of screw and nut 13, a screwed cap 14 with lock nut bearing against the arm 7. A bracket 2 is fitted to the tube 3 and serves as a seating for the body spring 16 and as a junction for the tubes of the frame.
Patent GB-135397-A (GB)
IPC: A62C37/08
Abstract: 135,397. Horton, S. Feb. 26, 1919. Fusible sprinkler heads.-A cap or cover a of paper, waxed paper, fibre, &c. for protecting sprinkler heads is provided with apertures c, Fig. 1, normally closed by disks, plates or strips d of metal or other material adapted to fuse at a lower temperature than the fusion temperature of the head. The cap is so attached at e as to be readily separated and removed by the issuing water. In a modification, the fusible part may consist of a band h, Fig. 2, encircling the cap, either in an uninterrupted line or in detached sections: on the fusion of such band, the lower part g of the cap may be removed by gravity or by a spring. In further modifications, the fusible part consists of a plate or cap at the bottom of the cover supporting a layer of slag wool or other non-conductor of heat.
Patent GB-135439-A (GB)
IPC: B24B9/16
Abstract: 135,439. Tolkowsky, M. June 16, 1919. Gems, treating.-In apparatus for grinding and polishing diamonds and other precious stones, the dop-holder 14 is carried by a stem 7 movable longitudinally but not rotatably in an horizontal supporting-arm 1, and is provided with setting means for limiting the downward movement during grinding &c. comprising a sleeve 5, surrounding the stem, and having thereon an external micrometer screw-thread engaging a correspondingly threaded part of the supporting-arm or of a sleeve 3 secured therein. The sleeve 5 carries a lock-nut 12 and has a divided head 6, whereby it may be set so that when the head 8 of the stem contacts with the divided head the required amount will have been ground from the gem. The dop-holder is made in two parts adapted to be clamped together to retain it in any required angular position on an arc-shaped plate 13 secured to the lower end of the stem, and the dop 19 is rotatably mounted in the holder by means of a stem 20 retained in position axially by means of pins 22 engaging a groove 21 in the stem. Between the dop and the holder is located a ring 23 carrying a pin 26, which projects into a recess 27 in the holder; the pin is pressed on one side by a spring 29 and on the other side by a screw 28, whereby angular adjustment of the ring may be made. Recesses 24 are provided in the periphery of the ring adapted to be engaged by a catch 25 secured to the dop to set. the gem for grinding the various facets. In modifications, the stem 7 may be guided in a bore or sleeve in the supporting-arm and have a micrometer screwthread and a nut at its upper end; the pins 22 may be replaced by a set-screw engaging the groove or by fingers pivoted at one end and spring-pressed at the other end, and the pin 26 and the spring 29 may be replaced by a short pin engaged by a groove in the screw 28.
Patent GB-643861-A (GB)
Title: Improvements in and relating to projection lamps and mountings therefor
IPC: G03B21/20
Filed: 1947-05-20
Abstract: 643,861. Projection lamps. BRITISH THOMSON-HOUSTON CO., Ltd. May 20, 1947, No. 13558. Convention date, May 21, 1946. [Classes 39(ii) and 75(iv)] [Also in Group XX] An electric lamp bulb comprises a concentrated light source enclosed in a tubular envelope which is configurated to provide integral engagement portions positioned in definite relation to the light source at points widely spaced longitudinally on axially opposite sides thereof, whereby the lamp bulb is adapted to be supported within a light projection apparatus by holder means engaging the configurations to locate the light source in a predetermined position in the projection apparatus. A lamp bulb 1 is mounted in a projection lamp housing 7 between a spherical concave reflector 8 held in a housing socket 13 and a light condenser 9 in a housing 16, and comprises a coiled filament light source 3 enclosed in a tubular envelope 2. The tubular envelope 2 is formed on the side adjacent the light condenser 9 with axially spaced depressions 26, 27, definitely located with respect to the light source 3 therein and arranged to engage fixed positioning buttons 25, 25 riveted to a vertically disposed plate 20 which is welded to a rear closure ring 22 of the condenser housing 16. The plate 20 is positionally secured by a pin 23 fitting into a hole 24 in the lamp housing 7 and the upper envelope depression 27 is elongated to allow for slight variations in the vertical distances between the buttons 25, 25 or the depressions 26, 27. Vertically spaced closed loop plate springs 28, 29, mounted on the reflector socket 13 resiliently engage the rear side of the tubular envelope on each side of the light source 3 therein and urge the lamp bulb forwardly against the positioning buttons 25, 25. The lower spring 29 carries a positioning button 31 which engages in an elongated depression 32 in the envelope wall to line the light source 3 laterally with the optical axis of the light reflector and condenser. A hairpin-shaped wire loop 33 is clamped to the lamp housing 7 and overlies the top of the lamp bulb 1 to serve as a stop facilitating the positioning of the lamp bulb when inserted from underneath. A two-part chimney 41, 42 surrounding the lamp bulb 1, and a fan 40 at the bottom of the housing 7 provide a draught of cooling air. The portion of the tubular envelope wall registering with the light condenser 9 may be coated on one or both sides with a film of magnesium fluoride to reduce reflection losses. Alternatively this portion of the envelope wall may be formed flat or with greatly'reduced curvature. In a modified arrangement, the envelope depressions 26, 27, 32 may be replaced by protuberances engaging in suitable depressions in the plate 20 and the spring 29, or may be formed grooveshaped to engage matching ridges 25, 31.